Shingle-machine



, @sin H. H. LOIV, OF GALENA, ILLINOIS.

SHINGLE-MACHINE.

Specification forming part of Letters Patent No. 23,692, dated April 19, 1859*; Ressued October 8, 1867, No. 2,774.

To all whom it may concern.

Be it known that I, H. H. Low, of Galena, in the county of Jo Daviess and State of Illinois,have invented a new and Improved Shingle-Machine; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l, is a front view of my invention. Fig. 2, a vertical section of ditto, taken in the line x, Figs. 1 and 3. Fig. 3, a plan or top view of ditto.

Similar letters of reference indicate corresponding parts in the several lfigures.

This invention relates to an improvement in that class of shingle machines in which a circular saw is used to cut the shingles from the bolt, and is an improvement on a sawing machine for which Letters Patent bearing date March 16th 1858, were granted to me.

The object of the within described invention is to obtain a machine perfectly automatic in its action, and by a very simple arrangement of means as will be hereinafter fully shown and described.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A, represents a rectangular frame which may be constructed in any proper way to support the working parts.

B, is a horizontal shaft which is placed on the upper part of said frame and having a circular saw C, placed on it.

D, D, are two ,uprights placed in the frame A, and having a sliding frame E, fitted between them. The frame E, is counterpoised between the uprights D, D, by weights F, F, the cords of which pass over pulleys a, in a crosspiece b, of the frame A, see more particularly Fig. 1.

On the end of the shaft B, adjoining the sliding frame'E, a pulley c, is placed, around which a belt d, passes, said belt also passing around a pulley c, which is attached to an upright swinging bar'G, the lower part of which is pivoted in the frame A, as shown at Figs. l and 2. The shaft of the pulley c, passes entirely through the bar G, and has a pinion g, on .its inner or back end, said pinion gearing into a wheel h, the shaft of which also passes through bar G, and through an arm H, adjoining the bar, and

has two pinions z', j, placed on it side by side, the pinion being smaller than z', as shown clearlyV in Figs. l and 9.. The upper end of the arm H, is attached by a pivot 7c, to a slide barI, which is fitted in proper guides Z, at the outer side of the crosspiece Z).

In the frame E, two vertical racks m, m, are placed, one at each side of the pinions z', j, see Fig. l, and at one side of said frame E,V two springs a, a', are attached, said springs projecting outward in reverse positions from opposite sides of an upright o, of frame E. On the slide bar I, two rollers p, p, are placed, the use of which will be presently explained. J, is a spring stop ba'r which is attached to the outer side of the crosspiece and has a pin Q, attached to it. To the outer end of the slide bar I, a lever K, is attached, said lever passing through a slot in a board r, on which a stop s, is attached, see Figs. l and 3.

On the upper surface of the frame E, two racks t, t', are placed, one at each end, and between the two racks t, t', a carriage L, is placed and allowed to slide freely back and forth. To each end of the carriage L, a spring pawl u, is attached, said pawls catching into the racks t, t. Longitudinally through the carriage L, a shaft M, passes, said shaft having a wiper o, at each end of it, the two wipers being placed on the shaft at right angles to each other. To one side of the carriage L, a lever N, is attached, said lever having a weight o', at one end and a friction roller b, at the other. To the side of the frame A, and near the lever N, two uprights c, c, are attached, and to the upper parts of these uprights an adjustable block cl, is attached, said block being over the lever N. To the outer side of the carriage L, two hand levers c, c', are attached, the outer ends of said levers being underneath the pawls u, u, as shown clearly in Fig. l.

The operation is as follows The bolt from which the shingles are cut,.'shown in red outline, is secured on the carriage L, and said carriage is properly adjusted on 4the frame E, so that the inner side of the bolt will be near the saw C. Motion is given the shaft B, in any proper way and a vertical reciprocating motion is given the frame E, through the medium of the bolt d, gearing g, L, z', j, and racks m, m', the pinions z', being moved laterally at the termination o l each movement of the frame by means of projections a", on said frame forcing back the spring stop J, and allowing the springs rt, n', to actuate the slide bar I, the smaller pinion z', gearing into the rack m, and mov ing the frame E, downward. The shingles are sawed from the bolt as the frame E, and bolt descend, and the bolt is presented obliquely to and fed toward the saw by means of the lever N, and the shaft M, with the wipers fu, the shaft M, being turned a certain distance each time the frame E, reaches the termination of its upward stroke, in consequence of the lever N, striking the block CZ, the wipers o, in consequence of being placed on the shaft M, in reverse positions catching into the racks t, alternately and thereby actuating the ends of the carriage L, alternately and moving it toward the saw in such a manner that the shingles will be sawed in taper form from the bolt. The carriage may be moved back at any time by depressing the inner ends of the levers e', and thereby raising the pawls u, u, free from the racks t, t.

From the above description it will be seen that a perfect automatic machine is obtained throughout. The length of stroke of the frame E, may be regulated by adjusting the upper projection ax, at the upper part of the frame, see Fig. l.

I do not claim a vertical reciprocating frame E, containing the bolt from which the shingles are sawed, for such device has been used, and may be seen in the machine formerly patented by me and previously alluded to; but,

Having thus described my invention, what I do claim as new and desire to secure by Letters Patent, is,

Operating the vertically reciprocating and .balance frame E, from the saw or power shaft B, through the medium of the pulleys c, e, and gearing g, 7L, z', j, arranged with the slide bar I, arm H, and the springs n, n, and spring stop J, substantially as and for the purpose set forth.

H. H. LOW.

lVitnesses JAMES CROWLEY, PETER MooNnY. 

